<http://schema.org/keywords>
"Fiction, Action & Adventure, Media Tie-In, Legends, Myths & Fables, Dragons, TV Tie-In, Vikings, Scandinavian"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Book-of-Dragons/Maggie-Testa/How-to-Train-Your-Dragon-TV/9781481421379>